Control method and device for refrigerating box, refrigerating box and computer readable storage medium

By installing multiple heating devices in the refrigeration box and dynamically adjusting their operation according to the temperature inside and outside the box, the temperature fluctuations caused by heat leakage in the air refrigeration box are solved, and the reliability and safety of cargo transportation are improved.

CN119268246APending Publication Date: 2025-01-07QINGDAO HB TEMPCON AVIATION CO LTD
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Patent Information

Application Number
CN202411434494.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2025-01-07

AI Technical Summary

Technical Problem

During transportation, air refrigerated boxes are prone to heat leakage due to the limitation of the sealing properties of the box, resulting in large temperature fluctuations, frequent start and stop of heating pipes, shortening their service life and affecting the reliability and safety of cargo transportation.

Method used

By installing multiple heating devices in the refrigerator, and using the processor and memory to perform the control method, the current heating stage and heat leakage conditions are judged based on the target temperature in the box and the external ambient temperature, and matching the appropriate amount of heating devices to maintain the operation of the heating device to The temperature is stable and reduces temperature fluctuations.

Benefits of technology

It effectively reduces the temperature fluctuation in the refrigerator, extends the service life of the heating device, and improves the reliability and safety of cargo transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of transfer equipment, and discloses a control method for a refrigerated container. The evaporator is arranged in the box body; the plurality of heating devices are arranged on the evaporator; the method comprises the steps that under the condition that the refrigerating box operates in a heating mode, the current heating stage of the refrigerating box is determined; under the condition that the current heating stage is the stable operation stage and the heat leakage condition is met, the target temperature in the box is determined, and the environment temperature outside the box is obtained; according to the target temperature in the box and the environment temperature outside the box, part of or all the heating devices are controlled to operate. The multiple heating devices can be matched to be started as required according to the target temperature in the refrigerator and the environment temperature outside the refrigerator, so that the adverse effect generated by the heat leakage phenomenon is eliminated as far as possible, the temperature in the refrigerator is kept stable, the fluctuation degree of the temperature in the refrigerator is reduced, and the reliability of cargo transfer of the refrigerator is guaranteed. The invention further discloses a control device for the refrigerating box, the refrigerating box and a computer readable storage medium.
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Description

Technical Field

[0001] The present application relates to the technical field of transfer equipment, for example, to a control method and device for a refrigerated box, a refrigerated box, and a computer-readable storage medium. Background Art

[0002] Temperature-sensitive goods such as vaccines, blood, and medicines have very strict requirements for temperature control during storage and transportation. Currently, the cold chain transportation of temperature-sensitive goods mainly relies on active aviation refrigerated containers. Active aviation refrigerated containers have cooling and heating functions, and can control the temperature of the cargo hold area to maintain a constant temperature in the box, so that temperature-sensitive goods can be stored and transported. In order to ensure the temperature performance of the refrigerated container during heating, the relevant technology proposes a heating pipe heating method, including: comparing the sampled return air temperature in the box with the set target temperature, when the return air temperature in the box reaches the target temperature, controlling the heating pipe to stop running; when the return air temperature in the box is lower than the target temperature, controlling the heating pipe to resume operation.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] Related technologies adjust the temperature inside the box by controlling the start and stop of the heating pipe. However, due to the limitation of the airtightness of the aviation refrigerated box, heat leakage is inevitable, especially at the overlap of the box, door seal, drain hole, pressure relief mechanism and the contact between the refrigeration machine and the cargo compartment. In addition, during the transportation process, aviation refrigerated boxes often pass through different countries and regions and cross different temperature zones. The change of external ambient temperature will have a great impact on the temperature stability inside the box. This will lead to large temperature fluctuations in the refrigerated box, causing the heating pipe to start and stop frequently, shortening the service life of the heating pipe, and affecting the reliability and safety of the refrigerated box cargo transportation.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a control method and device for a refrigerated box, a refrigerated box, and a computer-readable storage medium, which can reduce the fluctuation of the temperature inside the box and help ensure the reliability and safety of the transportation of goods in the refrigerated box.

[0008] In some embodiments, the cold storage box includes a box body; an evaporator, which is arranged in the box body; there are multiple heating devices, all of which are arranged on the evaporator; the control method includes: when the cold storage box operates in a heating mode, determining the current heating stage of the cold storage box; when the current heating stage is a stable operation stage and the heat leakage condition is met, determining the target temperature inside the box and obtaining the ambient temperature outside the box; according to the target temperature inside the box and the ambient temperature outside the box, controlling the operation of part or all of the heating devices.

[0009] In some embodiments, the device includes: a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned control method for a refrigerator when running the program instructions.

[0010] In some embodiments, the refrigerator includes: a box body; an evaporator disposed in the box body; a plurality of heating devices, all disposed on the evaporator; and the above-mentioned control device for the refrigerator is electrically connected to the plurality of heating devices respectively.

[0011] In some embodiments, the computer-readable storage medium stores program instructions, and when the program instructions are executed, the computer is used to execute the above-mentioned control method for the refrigerator.

[0012] The control method, device, and computer-readable storage medium for a refrigerator provided in the embodiments of the present disclosure can achieve the following technical effects:

[0013] When the refrigerator is in heating operation, the disclosed embodiment can first determine the current heating stage of the refrigerator. If the current heating stage is a stable operation stage, it is further determined whether the refrigerator meets the heat leakage condition. And when the heat leakage condition is met, the disclosed embodiment determines the current environmental working condition of the refrigerator according to the target temperature inside the box and the ambient temperature outside the box, and then analyzes the possible impact of the heat leakage phenomenon on the temperature inside the box under this condition. And accordingly, a number of heating devices are matched and turned on as needed, so as to eliminate the above-mentioned adverse effects as much as possible, so as to keep the temperature inside the refrigerator stable, and at the same time reduce the fluctuation of the temperature inside the box, which is conducive to ensuring the reliability and safety of the transportation of goods in the refrigerator.

[0014] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0016] Figure 1is a schematic structural diagram of a refrigerator provided by an embodiment of the present disclosure;

[0017] Figure 2 is a schematic structural diagram of another refrigerator provided by an embodiment of the present disclosure;

[0018] Figure 3 is a schematic diagram of a control method for a refrigerator provided by an embodiment of the present disclosure;

[0019] Figure 4 is a schematic diagram of another control method for a refrigerator provided by an embodiment of the present disclosure;

[0020] Figure 5 is a schematic diagram of another control method for a refrigerator provided by an embodiment of the present disclosure;

[0021] Figure 6 is a schematic diagram of another control method for a refrigerator provided by an embodiment of the present disclosure;

[0022] Figure 7 It is a schematic diagram of a control device for a refrigerator provided in an embodiment of the present disclosure.

[0023] Reference numerals:

[0024] 10: box body; 11: equipment compartment; 12: cargo compartment; 20: evaporator; 30: heating device; 40: evaporating fan; 50: control device for the refrigerated box; 51: processor; 52: memory; 53: communication interface; 54: bus. DETAILED DESCRIPTION

[0025] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0026] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0027] Unless otherwise stated, the term "plurality" means two or more.

[0028] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0029] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0030] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0031] Combination Figure 1-2 As shown, the embodiment of the present disclosure provides a refrigerator, comprising: a box body 10, an evaporator 20 and a heating device 30. The evaporator 20 is arranged in the box body 10. There are multiple heating devices 30, all of which are arranged on the evaporator 20.

[0032] The refrigerator provided by the embodiment of the present disclosure can realize the refrigeration function of the refrigerator through the evaporator 20 and the corresponding refrigeration system, so as to release cold energy to the refrigerator when the temperature inside is high, thereby realizing accurate control of the temperature inside the refrigerator. In addition, the heating function of the refrigerator can also be realized through a plurality of heating devices 30, so as to release heat to the refrigerator when the temperature inside is low, thereby realizing accurate control of the temperature inside the refrigerator.

[0033] Optionally, the box body 10 is internally constructed with an equipment warehouse 11 and a cargo warehouse 12. Furthermore, the evaporator 20 is arranged in the equipment warehouse 11, and the goods are stored in the cargo warehouse 12. In this way, the evaporator 20 and the refrigeration system connected thereto are uniformly installed in the equipment warehouse 11, and heat is exchanged with the cargo warehouse 12 through the air duct system, so that the temperature in the cargo warehouse 12 can be accurately controlled, which is conducive to ensuring the reliability of the cargo transportation in the cargo warehouse 12.

[0034] Optionally, the refrigerator further includes an evaporator fan 40. The evaporator fan 40 is arranged relative to the evaporator 20. In this way, the evaporator fan 40 can be arranged on the windward side of the evaporator 20 to circulate the air in the equipment compartment 11 and the cargo compartment 12, thereby realizing heat transfer to the cargo compartment 12, which is conducive to quickly controlling the temperature in the cargo compartment 12, so as to better create a storage environment required for cargo transportation.

[0035] Optionally, the embodiment of the present disclosure does not specifically limit the number of the heating devices 30. Preferably, there are three heating devices 30, all of which are electric heating tubes. In this way, three electric heating tubes can be evenly arranged on the leeward side of the evaporator 20, so that the air can be quickly heated and discharged into the cargo hold 12, which is conducive to quickly raising the temperature in the cargo hold 12, so as to better create a storage environment required for cargo transportation.

[0036] Optionally, the refrigerator further includes a control device 50 for the refrigerator. The control device 50 for the refrigerator is installed in the box body 10 and is electrically connected to the plurality of heating devices 30. The installation relationship described here is not limited to being placed inside the box body 10, but also includes installation connections with other components of the refrigerator, including but not limited to physical connections, electrical connections, or signal transmission connections. In this way, the embodiment of the present disclosure can execute a corresponding control method through the control device 50 to ensure the reliability and safety of the transportation of goods in the refrigerator.

[0037] Based on the above refrigerator, combined with Figure 3 As shown, the embodiment of the present disclosure provides a control method for a refrigerator, comprising:

[0038] S101, when the refrigerator is operating in a heating mode, the control device determines the current heating stage of the refrigerator.

[0039] S102, when the current heating stage is a stable operation stage and the heat leakage condition is met, the control device determines the target temperature inside the box and obtains the ambient temperature outside the box.

[0040] S103, the control device controls part or all of the heating devices to operate according to the target temperature inside the box and the ambient temperature outside the box.

[0041] By adopting the control method for a cold storage box provided by the embodiment of the present disclosure, when the cold storage box is in heating operation, the current heating stage of the cold storage box can be first determined. If the current heating stage is a stable operation stage, it is further determined whether the cold storage box meets the heat leakage condition. And when the heat leakage condition is met, the embodiment of the present disclosure determines the current environmental working condition of the cold storage box according to the target temperature inside the box and the ambient temperature outside the box, and then analyzes the possible impact of the heat leakage phenomenon on the temperature inside the box under this working condition. And accordingly, a number of heating devices are matched and turned on as needed, so as to eliminate the above-mentioned adverse effects as much as possible, so as to keep the temperature inside the cold storage box stable, and at the same time reduce the fluctuation of the temperature inside the box, which is conducive to ensuring the reliability and safety of the transportation of goods in the cold storage box.

[0042] Optionally, when the cold storage box is operating in heating mode, the control device determines the current heating stage of the cold storage box, including: when the cold storage box is operating in heating mode, the control device obtains the return air temperature in the box; when the return air temperature in the box is less than or equal to the preset return air temperature, the control device determines that the current heating stage of the cold storage box is a rapid heating stage; when the return air temperature in the box is greater than the preset return air temperature for the first time, the control device determines that the current heating stage of the cold storage box is a stable operation stage.

[0043] In this way, when the refrigerator box is running in the heating mode, the disclosed embodiment can determine the current heating stage according to the return air temperature in the box. When the return air temperature in the box is less than or equal to the preset return air temperature, it indicates that the box is in the early stage of the heating process. At this time, the actual temperature in the box is much lower than the target temperature in the box. Therefore, it can be determined that the refrigerator box is running in the rapid heating stage to quickly increase the temperature in the refrigerator box so that it can quickly reach the target temperature required for cargo storage. When the return air temperature in the box is greater than the preset return air temperature, it indicates that the box is in the late stage of the heating process. At this time, the actual temperature in the box is close to the target temperature in the box. Therefore, it can be determined that the refrigerator box is running in the stable operation stage to keep the temperature in the refrigerator box stable and reduce the fluctuation of the temperature in the box.

[0044] Optionally, the preset return air temperature is less than or equal to the target temperature in the box. Specifically, the control temperature difference between the target temperature in the box and the preset return air temperature is r1, and the value range of r1 can be set to 0.2℃~0.8℃. Preferably, r1 can be set to 0.5℃. r1 can also be adjusted according to the actual needs of the user, and can also be set to any other reasonable value such as 0.4℃ or 0.6℃.

[0045] Optionally, after the control device determines that the current heating stage of the refrigerated box is a stable operation stage, it determines whether the heat leakage condition is met in the following manner, including: when the return air temperature in the box is again less than or equal to the preset return air temperature, the control device determines that the heat leakage condition is met.

[0046] In this way, when the refrigerated box is running in the stable operation stage, if the return air temperature in the box is less than or equal to the preset return air temperature again, it indicates that the temperature in the box begins to fall back and gradually deviates from the target temperature required for cargo storage. At this time, the refrigerated box meets the heat leakage condition, and due to the influence of heat conduction, the external ambient temperature has a greater impact on the temperature stability in the box.

[0047] Optionally, the control device controls the operation of part or all of the heating devices according to the target temperature inside the box and the ambient temperature outside the box, including: the control device determines the target start-up number of the heating devices according to the difference between the target temperature inside the box and the ambient temperature outside the box; the control device controls the operation of the target start-up number of heating devices.

[0048] In this way, the embodiment of the present disclosure can determine the degree of influence of heat leakage on the temperature inside the box under different environmental conditions according to the difference between the target temperature inside the box and the ambient temperature outside the box. Then, the target start-up number of the heating device is matched accordingly, so as to realize on-demand start-up, so as to reasonably eliminate the above-mentioned adverse effects, better maintain the temperature stability inside the refrigerated box, and reduce the fluctuation of the temperature inside the box, which is conducive to ensuring the reliability and safety of the refrigerated box cargo transportation.

[0049] Optionally, the target number of heating devices to be activated is positively correlated with the difference between the target temperature inside the box and the ambient temperature outside the box. That is, the greater the difference between the target temperature inside the box and the ambient temperature outside the box, the greater the impact of the heat leakage on the temperature inside the box, and therefore more heating devices need to be operated to offset the above adverse effects, so the target number of heating devices to be activated is also correspondingly greater.

[0050] Optionally, the control device determines the target start-up number of the heating device according to the difference between the target temperature inside the box and the ambient temperature outside the box, including: when the difference between the target temperature inside the box and the ambient temperature outside the box is less than or equal to the first temperature difference, the control device determines the target start-up number of the heating device to be the first start-up number; or, when the difference between the target temperature inside the box and the ambient temperature outside the box is greater than the first temperature difference and less than or equal to the second temperature difference, the control device determines the target start-up number of the heating device to be the second start-up number; or, when the difference between the target temperature inside the box and the ambient temperature outside the box is greater than the second temperature difference, the control device determines the target start-up number of the heating device to be the third start-up number. Wherein, the first temperature difference is less than the second temperature difference, the first start-up number is less than the second start-up number, and the second start-up number is less than the third start-up number.

[0051] Optionally, the first temperature difference and the second temperature difference can be set in combination with the heat preservation performance of the box. For example, the first temperature difference is 10° C. and the second temperature difference is 30° C. The first temperature difference and the second temperature difference can also be adjusted according to the actual needs of the user, or can be set to any other reasonable value.

[0052] In this way, when the difference between the target temperature in the box and the ambient temperature outside the box is less than or equal to 10°C, the influence of heat leakage on the temperature inside the box is small. At this time, one heating device can be controlled to start running, which can avoid over-adjustment of the temperature inside the box, resulting in excessive fluctuation of the temperature inside the box. When the difference between the target temperature in the box and the ambient temperature outside the box is greater than 10°C and less than or equal to 30°C, the influence of heat leakage on the temperature inside the box is slightly greater. At this time, two heating devices can be controlled to start running, which can reasonably eliminate the above adverse effects, so as to better maintain the temperature stability inside the refrigerated box and reduce the fluctuation of the temperature inside the box. When the difference between the target temperature in the box and the ambient temperature outside the box is greater than 30°C, the influence of heat leakage on the temperature inside the box is extremely large. At this time, three heating devices can be controlled to start running, which can prevent the temperature inside the box from dropping rapidly, thereby avoiding the risk of temperature loss in the storage and transportation of high-value and temperature-sensitive goods in the refrigerated box.

[0053] Based on the above refrigerator, combined with Figure 4 As shown, the embodiment of the present disclosure provides another control method for a refrigerator, comprising:

[0054] S201, when the refrigerator is operating in a heating mode, the control device determines the current heating stage of the refrigerator.

[0055] S202: When the current heating stage is a rapid heating stage, the control device controls all heating devices to operate.

[0056] S203, when the current heating stage is a stable operation stage and the heat leakage condition is met, the control device determines the target temperature inside the box and obtains the ambient temperature outside the box.

[0057] S204, the control device controls part or all of the heating devices to operate according to the target temperature inside the box and the ambient temperature outside the box.

[0058] By adopting the control method for a cold storage box provided by the embodiment of the present disclosure, when the cold storage box is in heating operation, the current heating stage of the cold storage box can be first determined. If the current heating stage is a rapid heating stage, all heating devices can be controlled to operate to increase the temperature in the cold storage box at the fastest speed, thereby quickly creating a storage environment required for cargo transportation. If the current heating stage is a stable operation stage, it is further determined whether the cold storage box meets the heat leakage condition. And when the heat leakage condition is met, the embodiment of the present disclosure determines the current environmental condition of the cold storage box according to the target temperature in the box and the ambient temperature outside the box, and then analyzes the possible impact of the heat leakage phenomenon on the temperature in the box under this condition. And accordingly, a number of heating devices are matched to be turned on as needed, so as to eliminate the above-mentioned adverse effects as much as possible, so as to keep the temperature in the cold storage box stable, and at the same time reduce the fluctuation of the temperature in the box, which is conducive to ensuring the reliability and safety of cargo transportation in the cold storage box.

[0059] Optionally, when the current heating stage is a rapid heating stage, after the control device controls all heating devices to operate, it also includes: the control device adjusts the operating parameters of the heating device according to the difference between the target temperature in the box and the return air temperature in the box.

[0060] In this way, when the refrigerator is operating in the rapid heating stage, the embodiment of the present disclosure can regularly update the operating parameters of the heating device according to the difference between the target temperature in the box and the return air temperature in the box, so that the heating performance of the heating device can dynamically adapt to the temperature demand in the box, which is beneficial to avoid over-adjustment of the temperature in the box, resulting in excessive temperature fluctuations in the box.

[0061] Optionally, the operating parameters of the heating device are positively correlated with the difference between the target temperature in the box and the return air temperature in the box. That is, the smaller the difference between the target temperature in the box and the return air temperature in the box, the closer the actual temperature in the box is to the target temperature required for cargo storage. At this time, the heating device can be controlled to work according to relatively small operating parameters, thereby avoiding over-adjustment of the temperature in the box, which leads to excessive fluctuation of the temperature in the box.

[0062] Based on the above refrigerator, combined with Figure 5 As shown, the embodiment of the present disclosure provides another control method for a refrigerator, comprising:

[0063] S301, when the refrigerator is operating in a heating mode, the control device determines the current heating stage of the refrigerator.

[0064] S302: When the current heating stage is a stable operation stage and the heat leakage condition is not satisfied, the control device controls all heating devices to stop operating.

[0065] S303, when the current heating stage is a stable operation stage and the heat leakage condition is met, the control device determines the target temperature inside the box and obtains the ambient temperature outside the box.

[0066] S304, the control device controls part or all of the heating devices to operate according to the target temperature inside the box and the ambient temperature outside the box.

[0067] Using the control method for a refrigerated box provided by the embodiment of the present disclosure, when the refrigerated box is in heating operation, the current heating stage of the refrigerated box can be first determined. If the current heating stage is a stable operation stage, it is further determined whether the refrigerated box meets the heat leakage condition. When the heat leakage condition is not met, the actual temperature in the box is near the target temperature in the box. The embodiment of the present disclosure can control all heating devices to stop running, thereby avoiding over-adjustment of the temperature in the box, resulting in excessive fluctuations in the temperature in the box. When the heat leakage condition is met, the embodiment of the present disclosure determines the current environmental conditions of the refrigerated box according to the target temperature in the box and the ambient temperature outside the box, and then analyzes the possible impact of the heat leakage phenomenon on the temperature in the box under this condition. And according to this, a number of heating devices are matched to be turned on as needed, so as to eliminate the above-mentioned adverse effects as much as possible, so as to keep the temperature in the refrigerated box stable, and at the same time reduce the fluctuation of the temperature in the box, which is conducive to ensuring the reliability and safety of the refrigerated box cargo transportation.

[0068] Based on the above refrigerator, combined with Figure 6 As shown, the embodiment of the present disclosure provides another control method for a refrigerator, comprising:

[0069] S401, when the refrigerator is operating in heating mode, the control device controls the evaporating fan to start operating.

[0070] S402: The control device determines the current heating stage of the refrigerator.

[0071] S403, when the current heating stage is a stable operation stage and the heat leakage condition is met, the control device determines the target temperature inside the box and obtains the ambient temperature outside the box.

[0072] S404, the control device controls part or all of the heating devices to operate according to the target temperature inside the box and the ambient temperature outside the box.

[0073] By adopting the control method for a refrigerated box provided by the embodiment of the present disclosure, when the refrigerated box is in heating operation, the evaporating fan can be controlled to start and operate, so that it cooperates with the heating device to quickly release heat into the cargo hold through the air duct system, thereby realizing precise control of the temperature inside the refrigerated box. Then the embodiment of the present disclosure determines the current heating stage of the refrigerated box. If the current heating stage is a stable operation stage, it further determines whether the refrigerated box meets the heat leakage condition. And when the heat leakage condition is met, the embodiment of the present disclosure determines the current environmental conditions of the refrigerated box according to the target temperature inside the box and the ambient temperature outside the box, and then analyzes the possible impact of the heat leakage phenomenon on the temperature inside the box under this condition. And accordingly, a number of heating devices are matched to be turned on as needed, so as to eliminate the above-mentioned adverse effects as much as possible, so as to keep the temperature inside the refrigerated box stable, and at the same time reduce the fluctuation of the temperature inside the box, which is conducive to ensuring the reliability and safety of the refrigerated box cargo transportation.

[0074] Combination Figure 7 As shown, the embodiment of the present disclosure provides a control device 50 for a refrigerator, including a processor 51 and a memory 52. ​​Optionally, the control device 50 may also include a communication interface 53 and a bus 54. The processor 51, the communication interface 53, and the memory 52 may communicate with each other through the bus 54. The communication interface 53 may be used for information transmission. The processor 51 may call the logic instructions in the memory 52 to execute the control method for the refrigerator of the above embodiment.

[0075] In addition, the logic instructions in the memory 52 described above can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0076] The memory 52 is a computer-readable storage medium that can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 51 executes the function application and data processing by running the program instructions / modules stored in the memory 52, that is, the control method for the refrigerator in the above embodiment is implemented.

[0077] The memory 52 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 52 may include a high-speed random access memory and may also include a non-volatile memory.

[0078] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned control method for a refrigerator.

[0079] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes.

[0080] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0081] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0082] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0083] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for a refrigerator, characterized in that: The refrigerator comprises a box body; an evaporator disposed in the box body; a plurality of heating devices, all disposed on the evaporator; and the control method comprises: In the case where the refrigerator is operating in a heating mode, determining a current heating stage of the refrigerator; When the current heating stage is a stable operation stage and the heat leakage condition is met, the target temperature inside the box is determined, and the ambient temperature outside the box is obtained; According to the target temperature inside the box and the ambient temperature outside the box, control the operation of part or all of the heating devices.

2. The control method according to claim 1, characterized in that: According to the target temperature inside the box and the ambient temperature outside the box, control the operation of some or all heating devices, including: Determine the target start-up number of the heating device according to the difference between the target temperature inside the box and the ambient temperature outside the box; Control the operation of the heating device with the target start-up number; Among them, the target startup number of the heating device is positively correlated with the difference between the target temperature inside the box and the ambient temperature outside the box.

3. The control method according to claim 1, characterized in that: When the refrigerator is in heating mode, the current heating stage of the refrigerator is determined, including: When the refrigerated box is running in heating mode, obtain the return air temperature in the box; When the return air temperature in the refrigerator is less than or equal to the preset return air temperature, determining that the current heating stage of the refrigerator is a rapid heating stage; When the return air temperature in the refrigerator is greater than the preset return air temperature for the first time, it is determined that the current heating stage of the refrigerator is a stable operation stage.

4. The control method according to claim 3, characterized in that: After determining that the current heating stage of the refrigerator is a stable operation stage, the heat leakage condition is determined to be met in the following manner, including: When the return air temperature in the box is less than or equal to the preset return air temperature again, it is determined that the heat leakage condition is met.

5. The control method according to any one of claims 1 to 4, characterized in that: Also includes: When the current heating stage is a rapid heating stage, all heating devices are controlled to operate.

6. The control method according to any one of claims 1 to 4, characterized in that: Also includes: When the current heating stage is a stable operation stage and the heat leakage condition is not met, all heating devices are controlled to stop operating.

7. The control method according to any one of claims 1 to 4, characterized in that: The refrigerator further includes an evaporation fan, which is arranged relative to the evaporator; when the refrigerator operates in a heating mode, it also includes: Control the evaporation fan to start running.

8. A control device for a refrigerator, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for a refrigerator according to any one of claims 1 to 7 when running the program instructions.

9. A refrigerator, characterized in that: include: Box; An evaporator is arranged in the box; Heating devices, there are multiple ones, all of which are arranged on the evaporator; The control device for a refrigerator as claimed in claim 8 is electrically connected to a plurality of heating devices respectively.

10. A computer-readable storage medium storing program instructions, characterized in that: When the program instructions are executed, the computer is used to execute the control method for a refrigerator as claimed in any one of claims 1 to 7.